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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 5SJ4210-7HG42 |
| Alternative Part Number | 5SJ42107HG42 |
| Manufacturer | Siemens |
| Type | Miniature Circuit Breaker |
| Poles | 2 Pole |
| Rated Short-Circuit Capacity | 10 kA |
| Rated Current | 10 A |
| Supply Voltage | 400 V AC |
| Frequency | 50 Hz |
| Protection Class | IP20 with connected conductors, IP40 in the handle range |
| Switching Capacity Current | 10 kA according to EN 60898, 15 kA according to IEC 60947-2 |
| Power Loss | 1.4 W per pole in hot operating state |
| Operating Voltage | Min. 24 V, Max. 277 V AC, Max. 60 V DC (1-channel), Max. 125 V DC (2-channel) |
| Suitability for Operation | Mechanical engineering / industry |
| Product Features | Touch protection, halogen-free, sealable, silicon-free |
| Terminal Type | Combined terminal top and bottom |
| Environmental Conditions | Ambient temperature: -25°C to +55°C, storage temperature: -40°C to +75°C, pollution degree 3 |
| Vibration Resistance | 50 m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec) |
| Mounting Position | Any |
| Installation Depth | 70 mm |
| Number of Width Units | 2 |
| Mounting Type | On standard mounting rail |
| Net Weight | 331 g |
The Siemens 5SJ4210-7HG42 is a robust miniature circuit breaker designed to provide reliable overcurrent protection in a variety of applications. Engineered with precision, this 2-pole circuit breaker is rated for 10 kA and can handle currents up to 10 A. It is suitable for both AC and DC circuits, with a rated supply voltage of 400 V for AC and a maximum of 60 V for DC operations.
This circuit breaker is characterised by its C tripping class, ensuring a medium trip curve to protect against both overload and short-circuit conditions. It is compatible with standard mounting rails, making it easy to install in any orientation, and its compact design allows for efficient use of space within electrical enclosures.
The 5SJ4210-7HG42 is designed with safety in mind, featuring touch protection and the ability to be sealed to prevent unauthorised adjustments. It is also halogen-free and silicon-free, contributing to a safer and more environmentally friendly installation.
With a mechanical service life of approximately 20,000 operating cycles, this circuit breaker is built to last and maintain performance over time. Its insulation voltage is rated at 440 V for AC, and it has a breaking capacity short-circuit current (Icn) of 10 kA in accordance with UL 1077 and CSA C22.2 No.235.
The product is suitable for use in mechanical engineering and industrial environments, where reliable circuit protection is essential. Its versatility and high-quality construction make it a valuable component for electrical safety and operational efficiency.
Commonly Asked Questions
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Frequently Asked Questions
What type of circuit breaker is this?
This is a miniature circuit breaker designed for protecting electrical circuits from damage caused by overcurrent or short circuit.
Can this circuit breaker be used in residential applications?
Yes, it can be used in both residential and commercial applications where circuit protection is required.
What is the interrupting capacity of this circuit breaker?
The interrupting capacity of this circuit breaker is 10 kA according to EN 60898.
What is the rated current of this circuit breaker?
The rated current for this circuit breaker is 10 A.
What are the dimensions of this circuit breaker?
The dimensions are approximately 121 mm in height, 36 mm in width, and 76 mm in depth.
What is the tripping characteristic of this circuit breaker?
This circuit breaker has a C tripping characteristic, which means it is designed to trip at a current range of 5 to 10 times its rated current, making it suitable for higher inrush currents.
Is this circuit breaker suitable for industrial use?
Yes, it is suitable for use in mechanical engineering and industrial environments.
What is the protection class of this circuit breaker?
The protection class is IP20 with connected conductors, and IP40 in the handle range.
Can this circuit breaker be used with both AC and DC voltages?
Yes, it is suitable for use with both AC and DC voltages, with specific voltage ratings for each type.
How is this circuit breaker mounted?
It is designed to be mounted on a standard mounting rail.
Does this circuit breaker have a neutral conductor switching capability?
No, this model does not have neutral conductor switching capability.
What is the operating temperature range for this circuit breaker?
The operating temperature range is from -25°C to +55°C, with storage temperatures ranging from -40°C to +75°C.
Is the circuit breaker halogen-free?
Yes, it is halogen-free, which is beneficial for environments where reducing toxic gas emissions is important.
